Liquefaction potential evaluation of the quaternary alluvium, Western Ankara (Turkey)

Ulamiş, Koray; Kılıç, Recep

doi:10.1007/s12665-012-1526-1

Cited by 8 publications

(2 citation statements)

References 21 publications

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“…Upper Pliocene-aged reddish brown-and gray-colored clay deposits occurred because of the sedimentation of volcanic rock fragments within a lake environment (Erol 1954;Kasapoglu 1982;Kiper 1983;Ulamis and Kilic 2012). Clay samples were obtained from three different foundation excavations of construction sites (Fig.…”

Section: Methodsmentioning

confidence: 99%

Stabilization of high plasticity clay with lime and gypsum (Ankara, Turkey)

Kılıç

Küçükali²,

Ulamiş

2015

Bull Eng Geol Environ

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Clayey soils might lead to swelling, settlement and strength issues when considered as foundation or fill material. The use of additives to stabilize soils has been a major concern in the improvement of engineering characteristics. Upper Pliocene-aged clays cause various geotechnical problems in the residential area of Ankara. The aim of this study is to investigate the effect of lime, gypsum and lime with gypsum mixtures on the swell percent, swell pressure and unconfined compression strength of highly plastic clays in the Batikent region to specify an appropriate mixture ratio for soil stabilization. The optimum water content and maximum dry unit weight of clay were determined using standard compaction tests. Lime, gypsum and lime with gypsum mixtures were re-compacted in order to evaluate their effect on the swell percent, swell pressure and unconfined compression strength over curing time. Swell percent and swell pressure reduce with increasing additive percent over time, while the strength increases. The lowest improvement ratio is determined for gypsum. The optimum mixture is concluded to be 6 % lime, which corresponds to a 99.55 % decrease for swell percent, 98.98 % decrease for swell pressure and 191.87 % increase for the unconfined compressive strength for 90 days.

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Section: Methodsmentioning

confidence: 99%

Stabilization of high plasticity clay with lime and gypsum (Ankara, Turkey)

Kılıç

Küçükali²,

Ulamiş

2015

Bull Eng Geol Environ

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“…ℎ bar, 12 Kasım 1999 Düzce depremi için 70 bar olarak hesaplanmıştır[51],[52]. Global tektonik hatlar ve kıtalar arası, kıta içi, okyanusal kabuk faylanmalarına göre Türkiye'nin içinde bulunduğu kıta içi ve kıta içi transform sınırlar için gerilme düşümü ortalama 35.4 bardır[53].ℎ…”

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Investigation of Arias Intensity for Ankara and Surroundings

Ulamiş¹

2019

Pamukkale J Eng Sci

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Kuvvetli yer hareketi incelemelerinde genlik, en büyük yatay yer ivmesi ile spektral parametreler sismik açıdan tehlikeli alanlarda yapı dizaynında kullanılan temel bileşenlerdir. Bu çalışmada, bir çok aktif fayın kesişme noktasında yer alan Ankara çevresindeki ivme kayıtları derlenerek, sıvılaşma ve sismik şev duraylılığında da kullanılan Arias şiddetinin değişimi incelenmiştir. Büyüklüğü 4.0'den büyük olan deprem kayıtları incelenerek,

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Evaluation of liquefaction potential by standard penetration test and shear wave velocity methods: a case study

Aytaş¹,

Alpaslan

Özçep

2023

Nat Hazards

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Dynamic loads, such as earthquakes, can cause damage to soils, especially from soil liquefaction.Liquefaction analyses provide more reliable results when combined with the properties of soils and earthquakes. In recent years, computer programs have been developed in which many parameters can be used to perform these analyses for solving geotechnical engineering problems. SoilEngineering is a Microsoft Excel-based geotechnical design program with which calculations can be carried out and graphical results can be achieved based on empirical relationships. In this study, the effects of soil and earthquake parameters on soil liquefaction were analyzed using a standard penetration test (SPT) and shear wave velocity (Vs). We observed that there is conformity between the parameters used in different techniques. Taken together, our results show that calculating the liquefaction risk using both soil and earthquake properties will produce reliable results in solving geotechnical problems.

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Liquefaction potential evaluation of the quaternary alluvium, Western Ankara (Turkey)

Cited by 8 publications

References 21 publications

Stabilization of high plasticity clay with lime and gypsum (Ankara, Turkey)

Stabilization of high plasticity clay with lime and gypsum (Ankara, Turkey)

Investigation of Arias Intensity for Ankara and Surroundings

Evaluation of liquefaction potential by standard penetration test and shear wave velocity methods: a case study

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